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Almandine : Fe2+3Al2[SiO4]3, Graphite : C | |
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Erving, Franklin Co., Massachusetts, USA Single almandine garnet in silvery graphite matrix. The almandine garnet is exposed front and back allowing light to pass through the crystal showing it is quite translucent. One of the best I obtained from a new find. Overall size of mineral specimen: 5x3x1 cm. Size of individual crystals: 10 mm. |
| © 2002 John H. Betts | Photo ID: 5478 View Count: 405 |
Almandine : Fe2+3Al2[SiO4]3, Graphite : C | |
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Erving, Franklin Co., Massachusetts, USA Single almandine garnet in silvery graphite matrix. The almandine garnet is exposed front and back allowing light to pass through the crystal showing it is quite translucent. One of the best I obtained from a new find. Overall size of mineral specimen: 5x2x1 cm. Size of individual crystals: 8 mm. |
| © 2002 John H. Betts | Photo ID: 5467 View Count: 382 |
Almandine : Fe2+3Al2[SiO4]3, Graphite : C | |
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Erving, Franklin Co., Massachusetts, USA Single almandine garnet in silvery graphite matrix. The almandine garnet is well exposed. Missing one corner on the crystal. One of the largest crystals I obtained from a new find. Overall size of mineral specimen: 4x2.5x1 cm. Size of individual crystals: 12 mm. |
| © 2002 John H. Betts | Photo ID: 5468 View Count: 361 |
Almandine : Fe2+3Al2[SiO4]3, Graphite : C | |
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Erving, Franklin Co., Massachusetts, USA Single almandine garnet in silvery graphite matrix. The almandine garnet is well exposed and shows good translucence. No damage. The largest crystal I obtained from a new find. Overall size of mineral specimen: 7x4x1.5 cm. Size of individual crystals: 12 mm. |
| © 2002 John H. Betts | Photo ID: 5483 View Count: 346 |
Almandine : Fe2+3Al2[SiO4]3 | |
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Erving, Franklin Co., Massachusetts, USA 3 mm red almandine crystal in mica schist. P. Cristofono specimen and photo. Field collected 2005. |
| © 2005 Peter Cristofono | Photo ID: 37307 View Count: 262 |
Andradite-Grossular Series | |
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Warwick, Franklin Co., Massachusetts, USA 1 mm crystal with epidote. P. Cristofono specimen and photo. SEM-EDS analysis shows this to be an intermediate andradite-grossular. |
| © 2008 Peter Cristofono | Photo ID: 196604 View Count: 60 |
Ankerite : Ca(Fe2+ ,Mg,Mn2+)(CO3)2 | |
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Charlemont, Franklin Co., Massachusetts, USA 0.5 cm crystal of ankerite. S411-214 Excalibur Mineral specimen. |
| © 2009, JGW | Photo ID: 253801 View Count: 13 |
Aragonite : CaCO3 | |
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Cheapside Quarry, Deerfield, Franklin Co., Massachusetts, USA View is approximately 15 mm across. P. Cristofono specimen and photo. |
| © 2006 Peter Cristofono | Photo ID: 80311 View Count: 180 |
Babingtonite : Ca2(Fe,Mn)FeSi5O14(OH) | |
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Cheapside Quarry, Deerfield, Franklin Co., Massachusetts, USA The Cheapside Quarry fun starts with the babingtonite. Then as you zoom in you find minute crystals of epidote. Photomicrograph by Saul Krotki 2005 (.0685.1). Field of view 3.0 mm. |
| © Saul Krotki 2005 | Photo ID: 30795 View Count: 526 |
Babingtonite : Ca2(Fe,Mn)FeSi5O14(OH), Epidote : {Ca2}{Al2Fe3+}[O|OH|SiO4|Si2O7] | |
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Cheapside Quarry, Deerfield, Franklin Co., Massachusetts, USA This photo shows you the size comparison between the Cheapside Quarry babingtonite (black) and the minute epidote clusters (foreground center). Photomicrograph © Saul Krotki 2005 (.0685.4). Field of view 3.8 mm. |
| © Saul Krotki 2005 | Photo ID: 30797 View Count: 422 |
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